Who hasn't done a boatload of LSD and thought to themself "We can communicate with dolphins".
No judgement here.
There's probably a non-zero chance that a CIA researcher who happens to be a Lovecraft fan read the 1969 James Wade short story titled The deep ones and decided to make it a reality.
Holy hell that image on the wiki is somethin else..
Didn't one of them also basically become the Dolphin's sex toy?
She gave him handies on request. IIRC the dolphin went into a depression and wouldn't eat after they fired the researcher.
"They fired my girlfriend! How did you expect me to feel‽"
Have you tried giving it a handjob?
Unfortunate reality
For the human or the dolphin?